Add Rails backend: accounts via magic link, server documents, sharing

The app becomes a Rails 8 application; the Vue frontend moves to
app/frontend and is served through vite_rails.

- Without an account documents stay in the browser (IndexedDB). Sign-in
  is by magic link or the 6-digit code from the same mail; afterwards
  local documents can be uploaded into the account.
- Server documents (/d/<id>) with versioned saves and a single-editor
  lock per browser tab; others see them read-only and follow by polling.
- Sharing via link (works without an account) and via e-mail invitation,
  roles viewer/editor; the owner manages links and people.
- Store gains a read-only mode that blocks all content changes.
- Solid Queue, Cache and Cable share the one PostgreSQL database.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

config/application.rb

@@ -0,0 +1,42 @@
+require_relative "boot"
+
+require "rails"
+# Pick the frameworks you want:
+require "active_model/railtie"
+require "active_job/railtie"
+require "active_record/railtie"
+# require "active_storage/engine"
+require "action_controller/railtie"
+require "action_mailer/railtie"
+# require "action_mailbox/engine"
+# require "action_text/engine"
+require "action_view/railtie"
+require "action_cable/engine"
+require "rails/test_unit/railtie"
+
+# Require the gems listed in Gemfile, including any gems
+# you've limited to :test, :development, or :production.
+Bundler.require(*Rails.groups)
+
+module Numolus
+  class Application < Rails::Application
+    # Initialize configuration defaults for originally generated Rails version.
+    config.load_defaults 8.1
+
+    # Please, add to the `ignore` list any other `lib` subdirectories that do
+    # not contain `.rb` files, or that should not be reloaded or eager loaded.
+    # Common ones are `templates`, `generators`, or `middleware`, for example.
+    config.autoload_lib(ignore: %w[assets tasks])
+
+    # Configuration for the application, engines, and railties goes here.
+    #
+    # These settings can be overridden in specific environments using the files
+    # in config/environments, which are processed later.
+    #
+    # config.time_zone = "Central Time (US & Canada)"
+    # config.eager_load_paths << Rails.root.join("extras")
+
+    # Don't generate system test files.
+    config.generators.system_tests = nil
+  end
+end

config/boot.rb

@@ -0,0 +1,4 @@
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
+
+require "bundler/setup" # Set up gems listed in the Gemfile.
+require "bootsnap/setup" # Speed up boot time by caching expensive operations.

config/bundler-audit.yml

@@ -0,0 +1,5 @@
+# Audit all gems listed in the Gemfile for known security problems by running bin/bundler-audit.
+# CVEs that are not relevant to the application can be enumerated on the ignore list below.
+
+ignore:
+  - CVE-THAT-DOES-NOT-APPLY

config/cable.yml

@@ -0,0 +1,16 @@
+# Async adapter only works within the same process, so for manually triggering cable updates from a console,
+# and seeing results in the browser, you must do so from the web console (running inside the dev process),
+# not a terminal started via bin/rails console! Add "console" to any action or any ERB template view
+# to make the web console appear.
+development:
+  adapter: async
+
+test:
+  adapter: test
+
+production:
+  adapter: solid_cable
+  polling_interval: 0.1.seconds
+  message_retention: 1.day
+  writer_batch_size: 4
+  writer_batch_delay: 0.001.seconds

config/cache.yml

@@ -0,0 +1,15 @@
+default: &default
+  store_options:
+    # Cap age of oldest cache entry to fulfill retention policies
+    # max_age: <%= 60.days.to_i %>
+    max_size: <%= 256.megabytes %>
+    namespace: <%= Rails.env %>
+
+development:
+  <<: *default
+
+test:
+  <<: *default
+
+production:
+  <<: *default

config/ci.rb

@@ -0,0 +1,21 @@
+# Run using bin/ci
+
+CI.run do
+  step "Setup", "bin/setup --skip-server"
+
+  step "Security: Gem audit", "bin/bundler-audit"
+  step "Security: Brakeman code analysis", "bin/brakeman --quiet --no-pager --exit-on-warn --exit-on-error"
+  step "Tests: Rails", "bin/rails test"
+  step "Tests: Seeds", "env RAILS_ENV=test bin/rails db:seed:replant"
+
+  # Optional: Run system tests
+  # step "Tests: System", "bin/rails test:system"
+
+  # Optional: set a green GitHub commit status to unblock PR merge.
+  # Requires the `gh` CLI and `gh extension install basecamp/gh-signoff`.
+  # if success?
+  #   step "Signoff: All systems go. Ready for merge and deploy.", "gh signoff"
+  # else
+  #   failure "Signoff: CI failed. Do not merge or deploy.", "Fix the issues and try again."
+  # end
+end

config/credentials.yml.enc

@@ -0,0 +1 @@
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--2byEpB/5A5oqubg4--g/gkd6BoVg7/eUF6sgZZ7A==

config/database.yml

@@ -0,0 +1,67 @@
+# PostgreSQL. Versions 9.5 and up are supported.
+#
+# Install the pg driver:
+#   gem install pg
+# On macOS with Homebrew:
+#   gem install pg -- --with-pg-config=/opt/homebrew/bin/pg_config
+# On Windows:
+#   gem install pg
+#       Choose the win32 build.
+#       Install PostgreSQL and put its /bin directory on your path.
+#
+# Configure Using Gemfile
+# gem "pg"
+#
+default: &default
+  adapter: postgresql
+  encoding: unicode
+  # For details on connection pooling, see Rails configuration guide
+  # https://guides.rubyonrails.org/configuring.html#database-pooling
+  max_connections: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+
+
+development:
+  <<: *default
+  database: numolus_development
+
+  # The specified database role being used to connect to PostgreSQL.
+  # To create additional roles in PostgreSQL see `$ createuser --help`.
+  # When left blank, PostgreSQL will use the default role. This is
+  # the same name as the operating system user running Rails.
+  #username: numolus
+
+  # The password associated with the PostgreSQL role (username).
+  #password:
+
+  # Connect on a TCP socket. Omitted by default since the client uses a
+  # domain socket that doesn't need configuration. Windows does not have
+  # domain sockets, so uncomment these lines.
+  #host: localhost
+
+  # The TCP port the server listens on. Defaults to 5432.
+  # If your server runs on a different port number, change accordingly.
+  #port: 5432
+
+  # Schema search path. The server defaults to $user,public
+  #schema_search_path: myapp,sharedapp,public
+
+  # Minimum log levels, in increasing order:
+  #   debug5, debug4, debug3, debug2, debug1,
+  #   log, notice, warning, error, fatal, and panic
+  # Defaults to warning.
+  #min_messages: notice
+
+# Warning: The database defined as "test" will be erased and
+# re-generated from your development database when you run "rake".
+# Do not set this db to the same as development or production.
+test:
+  <<: *default
+  database: numolus_test
+
+# Production: one database for everything -- app data, Solid Queue, Solid
+# Cache and Solid Cable. The password comes from NUMOLUS_DATABASE_PASSWORD.
+production:
+  <<: *default
+  database: numolus_production
+  username: numolus
+  password: <%= ENV["NUMOLUS_DATABASE_PASSWORD"] %>

config/environment.rb

@@ -0,0 +1,5 @@
+# Load the Rails application.
+require_relative "application"
+
+# Initialize the Rails application.
+Rails.application.initialize!

config/environments/development.rb

@@ -0,0 +1,72 @@
+require "active_support/core_ext/integer/time"
+
+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
+
+  # Make code changes take effect immediately without server restart.
+  config.enable_reloading = true
+
+  # Do not eager load code on boot.
+  config.eager_load = false
+
+  # Show full error reports.
+  config.consider_all_requests_local = true
+
+  # Enable server timing.
+  config.server_timing = true
+
+  # Enable/disable Action Controller caching. By default Action Controller caching is disabled.
+  # Run rails dev:cache to toggle Action Controller caching.
+  if Rails.root.join("tmp/caching-dev.txt").exist?
+    config.action_controller.perform_caching = true
+    config.action_controller.enable_fragment_cache_logging = true
+    config.public_file_server.headers = { "cache-control" => "public, max-age=#{2.days.to_i}" }
+  else
+    config.action_controller.perform_caching = false
+  end
+
+  # Change to :null_store to avoid any caching.
+  config.cache_store = :memory_store
+
+  # Don't care if the mailer can't send.
+  config.action_mailer.raise_delivery_errors = false
+
+  # Make template changes take effect immediately.
+  config.action_mailer.perform_caching = false
+
+  # Set localhost to be used by links generated in mailer templates.
+  config.action_mailer.default_url_options = { host: "localhost", port: 3000 }
+  # mails open at http://localhost:3000/letter_opener
+  config.action_mailer.delivery_method = :letter_opener_web
+  config.action_mailer.perform_deliveries = true
+
+  # Print deprecation notices to the Rails logger.
+  config.active_support.deprecation = :log
+
+  # Raise an error on page load if there are pending migrations.
+  config.active_record.migration_error = :page_load
+
+  # Highlight code that triggered database queries in logs.
+  config.active_record.verbose_query_logs = true
+
+  # Append comments with runtime information tags to SQL queries in logs.
+  config.active_record.query_log_tags_enabled = true
+
+  # Highlight code that enqueued background job in logs.
+  config.active_job.verbose_enqueue_logs = true
+
+  # Highlight code that triggered redirect in logs.
+  config.action_dispatch.verbose_redirect_logs = true
+
+  # Raises error for missing translations.
+  # config.i18n.raise_on_missing_translations = true
+
+  # Annotate rendered view with file names.
+  config.action_view.annotate_rendered_view_with_filenames = true
+
+  # Uncomment if you wish to allow Action Cable access from any origin.
+  # config.action_cable.disable_request_forgery_protection = true
+
+  # Raise error when a before_action's only/except options reference missing actions.
+  config.action_controller.raise_on_missing_callback_actions = true
+end

config/environments/production.rb

@@ -0,0 +1,88 @@
+require "active_support/core_ext/integer/time"
+
+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
+
+  # Code is not reloaded between requests.
+  config.enable_reloading = false
+
+  # Eager load code on boot for better performance and memory savings (ignored by Rake tasks).
+  config.eager_load = true
+
+  # Full error reports are disabled.
+  config.consider_all_requests_local = false
+
+  # Turn on fragment caching in view templates.
+  config.action_controller.perform_caching = true
+
+  # Cache assets for far-future expiry since they are all digest stamped.
+  config.public_file_server.headers = { "cache-control" => "public, max-age=#{1.year.to_i}" }
+
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
+  # config.asset_host = "http://assets.example.com"
+
+  # Assume all access to the app is happening through a SSL-terminating reverse proxy.
+  config.assume_ssl = true
+
+  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+  config.force_ssl = true
+
+  # Skip http-to-https redirect for the default health check endpoint.
+  # config.ssl_options = { redirect: { exclude: ->(request) { request.path == "/up" } } }
+
+  # Log to STDOUT with the current request id as a default log tag.
+  config.log_tags = [ :request_id ]
+  config.logger   = ActiveSupport::TaggedLogging.logger(STDOUT)
+
+  # Change to "debug" to log everything (including potentially personally-identifiable information!).
+  config.log_level = ENV.fetch("RAILS_LOG_LEVEL", "info")
+
+  # Prevent health checks from clogging up the logs.
+  config.silence_healthcheck_path = "/up"
+
+  # Don't log any deprecations.
+  config.active_support.report_deprecations = false
+
+  # Replace the default in-process memory cache store with a durable alternative.
+  config.cache_store = :solid_cache_store
+
+  # Replace the default in-process and non-durable queuing backend for Active Job.
+  config.active_job.queue_adapter = :solid_queue
+
+  # Ignore bad email addresses and do not raise email delivery errors.
+  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
+  # config.action_mailer.raise_delivery_errors = false
+
+  # Set host to be used by links generated in mailer templates.
+  config.action_mailer.default_url_options = { host: ENV.fetch("NUMOLUS_HOST", "numolus.wicom.li"), protocol: "https" }
+
+  # Outgoing SMTP server, configured by environment variables.
+  config.action_mailer.delivery_method = :smtp
+  config.action_mailer.smtp_settings = {
+    address: ENV["SMTP_ADDRESS"],
+    port: ENV.fetch("SMTP_PORT", 587).to_i,
+    user_name: ENV["SMTP_USER_NAME"],
+    password: ENV["SMTP_PASSWORD"],
+    authentication: :plain,
+    enable_starttls_auto: true
+  }
+
+  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
+  # the I18n.default_locale when a translation cannot be found).
+  config.i18n.fallbacks = true
+
+  # Do not dump schema after migrations.
+  config.active_record.dump_schema_after_migration = false
+
+  # Only use :id for inspections in production.
+  config.active_record.attributes_for_inspect = [ :id ]
+
+  # Enable DNS rebinding protection and other `Host` header attacks.
+  # config.hosts = [
+  #   "example.com",     # Allow requests from example.com
+  #   /.*\.example\.com/ # Allow requests from subdomains like `www.example.com`
+  # ]
+  #
+  # Skip DNS rebinding protection for the default health check endpoint.
+  # config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
+end

config/environments/test.rb

@@ -0,0 +1,50 @@
+# The test environment is used exclusively to run your application's
+# test suite. You never need to work with it otherwise. Remember that
+# your test database is "scratch space" for the test suite and is wiped
+# and recreated between test runs. Don't rely on the data there!
+
+Rails.application.configure do
+  # Settings specified here will take precedence over those in config/application.rb.
+
+  # While tests run files are not watched, reloading is not necessary.
+  config.enable_reloading = false
+
+  # Eager loading loads your entire application. When running a single test locally,
+  # this is usually not necessary, and can slow down your test suite. However, it's
+  # recommended that you enable it in continuous integration systems to ensure eager
+  # loading is working properly before deploying your code.
+  config.eager_load = ENV["CI"].present?
+
+  # Configure public file server for tests with cache-control for performance.
+  config.public_file_server.headers = { "cache-control" => "public, max-age=3600" }
+
+  # Show full error reports.
+  config.consider_all_requests_local = true
+  config.cache_store = :null_store
+
+  # Render exception templates for rescuable exceptions and raise for other exceptions.
+  config.action_dispatch.show_exceptions = :rescuable
+
+  # Disable request forgery protection in test environment.
+  config.action_controller.allow_forgery_protection = false
+
+  # Tell Action Mailer not to deliver emails to the real world.
+  # The :test delivery method accumulates sent emails in the
+  # ActionMailer::Base.deliveries array.
+  config.action_mailer.delivery_method = :test
+
+  # Set host to be used by links generated in mailer templates.
+  config.action_mailer.default_url_options = { host: "example.com" }
+
+  # Print deprecation notices to the stderr.
+  config.active_support.deprecation = :stderr
+
+  # Raises error for missing translations.
+  # config.i18n.raise_on_missing_translations = true
+
+  # Annotate rendered view with file names.
+  # config.action_view.annotate_rendered_view_with_filenames = true
+
+  # Raise error when a before_action's only/except options reference missing actions.
+  config.action_controller.raise_on_missing_callback_actions = true
+end

config/initializers/content_security_policy.rb

@@ -0,0 +1,38 @@
+# Be sure to restart your server when you modify this file.
+
+# Define an application-wide content security policy.
+# See the Securing Rails Applications Guide for more information:
+# https://guides.rubyonrails.org/security.html#content-security-policy-header
+
+# Rails.application.configure do
+#   config.content_security_policy do |policy|
+#     policy.default_src :self, :https
+#     policy.font_src    :self, :https, :data
+#     policy.img_src     :self, :https, :data
+#     policy.object_src  :none
+#     policy.script_src  :self, :https
+    # Allow @vite/client to hot reload javascript changes in development
+#    policy.script_src *policy.script_src, :unsafe_eval, "http://#{ ViteRuby.config.host_with_port }" if Rails.env.development?
+
+    # You may need to enable this in production as well depending on your setup.
+#    policy.script_src *policy.script_src, :blob if Rails.env.test?
+
+#     policy.style_src   :self, :https
+    # Allow @vite/client to hot reload style changes in development
+#    policy.style_src *policy.style_src, :unsafe_inline if Rails.env.development?
+
+#     # Specify URI for violation reports
+#     # policy.report_uri "/csp-violation-report-endpoint"
+#   end
+#
+#   # Generate session nonces for permitted importmap, inline scripts, and inline styles.
+#   config.content_security_policy_nonce_generator = ->(request) { request.session.id.to_s }
+#   config.content_security_policy_nonce_directives = %w(script-src style-src)
+#
+#   # Automatically add `nonce` to `javascript_tag`, `javascript_include_tag`, and `stylesheet_link_tag`
+#   # if the corresponding directives are specified in `content_security_policy_nonce_directives`.
+#   # config.content_security_policy_nonce_auto = true
+#
+#   # Report violations without enforcing the policy.
+#   # config.content_security_policy_report_only = true
+# end

config/initializers/filter_parameter_logging.rb

@@ -0,0 +1,8 @@
+# Be sure to restart your server when you modify this file.
+
+# Configure parameters to be partially matched (e.g. passw matches password) and filtered from the log file.
+# Use this to limit dissemination of sensitive information.
+# See the ActiveSupport::ParameterFilter documentation for supported notations and behaviors.
+Rails.application.config.filter_parameters += [
+  :passw, :email, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn, :cvv, :cvc
+]

config/initializers/inflections.rb

@@ -0,0 +1,16 @@
+# Be sure to restart your server when you modify this file.
+
+# Add new inflection rules using the following format. Inflections
+# are locale specific, and you may define rules for as many different
+# locales as you wish. All of these examples are active by default:
+# ActiveSupport::Inflector.inflections(:en) do |inflect|
+#   inflect.plural /^(ox)$/i, "\\1en"
+#   inflect.singular /^(ox)en/i, "\\1"
+#   inflect.irregular "person", "people"
+#   inflect.uncountable %w( fish sheep )
+# end
+
+# These inflection rules are supported but not enabled by default:
+# ActiveSupport::Inflector.inflections(:en) do |inflect|
+#   inflect.acronym "RESTful"
+# end

config/locales/en.yml

@@ -0,0 +1,31 @@
+# Files in the config/locales directory are used for internationalization and
+# are automatically loaded by Rails. If you want to use locales other than
+# English, add the necessary files in this directory.
+#
+# To use the locales, use `I18n.t`:
+#
+#     I18n.t "hello"
+#
+# In views, this is aliased to just `t`:
+#
+#     <%= t("hello") %>
+#
+# To use a different locale, set it with `I18n.locale`:
+#
+#     I18n.locale = :es
+#
+# This would use the information in config/locales/es.yml.
+#
+# To learn more about the API, please read the Rails Internationalization guide
+# at https://guides.rubyonrails.org/i18n.html.
+#
+# Be aware that YAML interprets the following case-insensitive strings as
+# booleans: `true`, `false`, `on`, `off`, `yes`, `no`. Therefore, these strings
+# must be quoted to be interpreted as strings. For example:
+#
+#     en:
+#       "yes": yup
+#       enabled: "ON"
+
+en:
+  hello: "Hello world"

config/puma.rb

@@ -0,0 +1,42 @@
+# This configuration file will be evaluated by Puma. The top-level methods that
+# are invoked here are part of Puma's configuration DSL. For more information
+# about methods provided by the DSL, see https://puma.io/puma/Puma/DSL.html.
+#
+# Puma starts a configurable number of processes (workers) and each process
+# serves each request in a thread from an internal thread pool.
+#
+# You can control the number of workers using ENV["WEB_CONCURRENCY"]. You
+# should only set this value when you want to run 2 or more workers. The
+# default is already 1. You can set it to `auto` to automatically start a worker
+# for each available processor.
+#
+# The ideal number of threads per worker depends both on how much time the
+# application spends waiting for IO operations and on how much you wish to
+# prioritize throughput over latency.
+#
+# As a rule of thumb, increasing the number of threads will increase how much
+# traffic a given process can handle (throughput), but due to CRuby's
+# Global VM Lock (GVL) it has diminishing returns and will degrade the
+# response time (latency) of the application.
+#
+# The default is set to 3 threads as it's deemed a decent compromise between
+# throughput and latency for the average Rails application.
+#
+# Any libraries that use a connection pool or another resource pool should
+# be configured to provide at least as many connections as the number of
+# threads. This includes Active Record's `pool` parameter in `database.yml`.
+threads_count = ENV.fetch("RAILS_MAX_THREADS", 3)
+threads threads_count, threads_count
+
+# Specifies the `port` that Puma will listen on to receive requests; default is 3000.
+port ENV.fetch("PORT", 3000)
+
+# Allow puma to be restarted by `bin/rails restart` command.
+plugin :tmp_restart
+
+# Run the Solid Queue supervisor inside of Puma for single-server deployments.
+plugin :solid_queue if ENV["SOLID_QUEUE_IN_PUMA"]
+
+# Specify the PID file. Defaults to tmp/pids/server.pid in development.
+# In other environments, only set the PID file if requested.
+pidfile ENV["PIDFILE"] if ENV["PIDFILE"]

config/queue.yml

@@ -0,0 +1,18 @@
+default: &default
+  dispatchers:
+    - polling_interval: 1
+      batch_size: 500
+  workers:
+    - queues: "*"
+      threads: 3
+      processes: <%= ENV.fetch("JOB_CONCURRENCY", 1) %>
+      polling_interval: 1
+
+development:
+  <<: *default
+
+test:
+  <<: *default
+
+production:
+  <<: *default

config/recurring.yml

@@ -0,0 +1,15 @@
+# examples:
+#   periodic_cleanup:
+#     class: CleanSoftDeletedRecordsJob
+#     queue: background
+#     args: [ 1000, { batch_size: 500 } ]
+#     schedule: every hour
+#   periodic_cleanup_with_command:
+#     command: "SoftDeletedRecord.due.delete_all"
+#     priority: 2
+#     schedule: at 5am every day
+
+production:
+  clear_solid_queue_finished_jobs:
+    command: "SolidQueue::Job.clear_finished_in_batches(sleep_between_batches: 0.3)"
+    schedule: every hour at minute 12

config/routes.rb

@@ -0,0 +1,33 @@
+Rails.application.routes.draw do
+  get "up" => "rails/health#show", as: :rails_health_check
+
+  # sign-in / invitation link from the mail: confirm page, then POST signs in
+  get "auth/verify" => "auth#show", as: :verify_auth
+  post "auth/verify" => "auth#create"
+
+  namespace :api do
+    post "auth/magic_link" => "auth#magic_link"
+    post "auth/code" => "auth#code"
+    delete "auth/session" => "auth#logout"
+
+    get "me" => "me#show"
+    patch "me" => "me#update"
+
+    resources :documents, only: %i[index create show update destroy] do
+      resource :lock, only: %i[create destroy], controller: "document_locks"
+      resource :join, only: :create
+      get "share" => "shares#show"
+      post "share/links" => "shares#create_link"
+      delete "share/links/:id" => "shares#revoke_link"
+      post "share/invitations" => "shares#invite"
+      patch "share/members/:user_id" => "shares#update_member"
+      delete "share/members/:user_id" => "shares#remove_member"
+    end
+  end
+
+  mount LetterOpenerWeb::Engine, at: "/letter_opener" if Rails.env.development?
+
+  # the Vue app
+  get "d/:id" => "spa#show", as: :document_page
+  root "spa#show"
+end

config/vite.json

@@ -0,0 +1,17 @@
+{
+  "all": {
+    "sourceCodeDir": "app/frontend",
+    "watchAdditionalPaths": []
+  },
+  "development": {
+    "autoBuild": true,
+    "skipProxy": true,
+    "publicOutputDir": "vite-dev",
+    "port": 3036
+  },
+  "test": {
+    "autoBuild": true,
+    "publicOutputDir": "vite-test",
+    "port": 3037
+  }
+}